The influence of white and blue silica gels as adsorbents in adsorptive-distillation of ethanol-water mixture

Megawati, Megawati; Jannah, Reni Ainun; Rahayuningtiyas, Indi

doi:10.1063/1.4968367

Cited by 2 publications

(4 citation statements)

References 17 publications

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“…Based on analysis with the GC-FID instrument, the percentage of ethanol content that has been recycled by the adsorption distillation process using white silica gel adsorbent has increased when compared to the percentage of initial ethanol content. In addition, this study is more better if compared with previous studies, where the pure ethanol concentration increased from 90.8% to 96.7% [24]. The GC-FID analysis results are in line with the test results using the GC/MS instrument, where the impurities are successfully absorbed by the adsorbent so that the recycled ethanol constituent components are detected less when compared to the initial constituent components and cause an increase in the percentage of ethanol content.…”

Section: Analysis Of Recycled Ethanol Using White Silica Gel Adsorbentsupporting

confidence: 84%

“…Type molecular sieves are the most used in the application of ethanol-water azeotrope separation [23]. In addition, the adsorption distillation process with silica gel has also been carried out and gives a good value [24]. The aims of this study to compare two adsorbents in the ability to remove ethanol impurities in the propolis production by-product.…”

Section: Introductionmentioning

confidence: 99%

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Ethanol Recovery From Propolis Production Waste Using Adsorption Distillation Method

Sahlan¹,

Yulistiono²,

Sasongko³

et al. 2021

Int J App Pharm

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Objective: This study objective to compare two adsorbents in the ability to recover ethanol in the propolis production by-product. Methods: Research methods include initial identification of the compound content in ethanol by-products of propolis production with GC/MS and determination of ethanol levels by GC-FID. The process of increasing ethanol content is carried out by the adsorption distillation method; the adsorbent used are synthetic zeolite 3A and white silica gel which has activated with the furnace. Results: The result obtained from the study is the initial ethanol content 27.5%. After the ethanol recycle process using synthetic zeolite 3A 30, 60, and 90 grams, it was obtained content 82.3%, 87.1%, and 90.9%. By using 30, 60, and 90 grams silica gel, it was obtained content 72.0%, 79.2%, and 82.2%. Conclusion: Based on these results it can be concluded that the ethanol content of the by-products of propolis production has been successfully increased by the distillation adsorption method with synthetic zeolite 3A 90 grams as the best result. The ethanol which recycling with this formulation has the characteristic odor of ethanol, which is very strong and does not has the characteristic odor of propolis.

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Section: Analysis Of Recycled Ethanol Using White Silica Gel Adsorbentsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

Ethanol Recovery From Propolis Production Waste Using Adsorption Distillation Method

Sahlan¹,

Yulistiono²,

Sasongko³

et al. 2021

Int J App Pharm

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show abstract

“…14 The system was constructed with three columns, i.e., first distilation column to decrease water content until azeotropic point, bed of adsorbent as second column to remove water in solution, and second distillation column as third column to purify isopropanol until anhydrous concentration. 17 In this research, the initial ethanol concentration in the flask was 93.8% v/v (in liquid-phase). The concentration of ethanol condensate is equal to the vapourphase ethanol concentration that was found from vapour-liquid equilibrium table at pressure of 1 atm and its value was about 94.28% v/v (the water content in first condensate was about 5.72% w/w).…”

Section: Resultsmentioning

confidence: 99%

“…[13][14][15] The latter workers used inorganic adsorbents such as molecular sieves, lithium chloride, silica gel and activated alumina. 4,9,14,16,17 In addition, synthetic zeolites 3Å is better than natural ones for removing and purifying ethanol from an ethanol-water mixture in gas phase. 16 The focus of this research is to study the quantitative modelling of adsorptive-distillation of ethanol-water solution using natural and synthetic zeolites as adsorbent.…”

Section: Introductionmentioning

confidence: 99%

Modelling of Adsorptive-distillation of Ethanol-water Using Natural and Synthetic Zeolites as Adsorbent

Rengga¹,

Fardhyanti²,

Akhir³

et al. 2018

JPS

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To cite this article: Megawati et al. (2018). Modelling of adsorptive-distillation of ethanolwater using natural and synthetic zeolites as adsorbent. ABSTRACT:The purpose of this research is to study the modeling of adsorptivedistillation (AD) on ethanol-water mixture purification using natural and synthetic zeolites as adsorbent. The synthetic zeolite type used was zeolite 3A. AD is an effective way to purify ethanol-water mixture so that it can produce pure ethanol as fuel. Natural and synthetic zeolites as adsorbent are quite promising for industrial application. The experiment was conducted in a batch operation. Four AD modellings are developed based on four different simplifications, i.e., quasi-steady-state with no axial dispersion (Model 1), unsteady-state with no axial dispersion (Model 2), quasi-steady-state with axial dispersion (Model 3) and unsteady-state with axial dispersion (Model 4). The equilibrium equation correlating water content in vapour and water content in adsorbent particle was approximated by Henry's law model.

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The influence of white and blue silica gels as adsorbents in adsorptive-distillation of ethanol-water mixture

Cited by 2 publications

References 17 publications

Ethanol Recovery From Propolis Production Waste Using Adsorption Distillation Method

Ethanol Recovery From Propolis Production Waste Using Adsorption Distillation Method

Modelling of Adsorptive-distillation of Ethanol-water Using Natural and Synthetic Zeolites as Adsorbent

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